Mechanism of zinc damaging to blast furnace tuyere refractory

IMR OpenIR

	Mechanism of zinc damaging to blast furnace tuyere refractory
其他题名	Mechanism of zinc damaging to blast furnace tuyere refractory
	Yang Xuefeng 1; Chu Mansheng 3; Shen Fengman 3; Zhang Zhuming 2
	2009
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
卷号	22 期号:6 页码:454-460
摘要	The phenomena of tuyere upward-warp have been found at No.6 blast furnace in Kunming Steel Company China after its blow-in, which has made a great impact on the practical production of the furnace. Thus, a number of efforts have been made to elucidate the mechanism of this phenomenon. The results of investigation and tests revealed that the enrichment and expansion of zinc in the tuyere bricks is the main factor leading to the tuyere upward-warp. The eroding behavior of zinc is that the inner structure of the tuyere bricks turns from dense to loose with entering, enriching and expanding of zinc, which forms spot-like-->stripe-like-->ditch-like-->vein-like-->tumor-like eroding passage. Additionally, it is found that the sequence of deleterious elements entering the tuyere refractory is K, Na, Zn and Pb, respectively. Finally, the phenomena and process of zinc crystallization and growth in the refractory have been clearly observed and recorded during this investigation.
其他摘要	The phenomena of tuyere upward-warp have been found at No.6 blast furnace in Kunming Steel Company China after its blow-in, which has made a great impact on the practical production of the furnace. Thus, a number of efforts have been made to elucidate the mechanism of this phenomenon. The results of investigation and tests revealed that the enrichment and expansion of zinc in the tuyere bricks is the main factor leading to the tuyere upward-warp. The eroding behavior of zinc is that the inner structure of the tuyere bricks turns from dense to loose with entering, enriching and expanding of zinc, which forms spot-like→stripe-like→ditch-like→vein-like→tumor-like eroding passage. Additionally, it is found that the sequence of deleterious elements entering the tuyere refractory is K, Na, Zn and Pb, respectively. Finally, the phenomena and process of zinc crystallization and growth in the refractory have been clearly observed and recorded during this investigation.
关键词	Blast furnace Tuyere Refractory Zinc Erosion Deleterious elements
收录类别	CSCD
语种	英语
资助项目	[Program for New Century Excellent Talents in University]
CSCD记录号	CSCD:3791341
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/158110
专题	中国科学院金属研究所
作者单位	1.Cent South University, Sch Minerals Proc & Bioengn, Changsha 410083, Hunan, Peoples R China 2.Kunming Iron & Steel Ltd Co, Ctr Technology, Kunming 650302, Peoples R China 3.中国科学院金属研究所
推荐引用方式 GB/T 7714	Yang Xuefeng,Chu Mansheng,Shen Fengman,et al. Mechanism of zinc damaging to blast furnace tuyere refractory[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2009,22(6):454-460.
APA	Yang Xuefeng,Chu Mansheng,Shen Fengman,&Zhang Zhuming.(2009).Mechanism of zinc damaging to blast furnace tuyere refractory.ACTA METALLURGICA SINICA-ENGLISH LETTERS,22(6),454-460.
MLA	Yang Xuefeng,et al."Mechanism of zinc damaging to blast furnace tuyere refractory".ACTA METALLURGICA SINICA-ENGLISH LETTERS 22.6(2009):454-460.